adding to Skip's comments.. Sometimes when my team adds a motor block after
a loop it behaves oddly. So you might need to add another block in
between.. these are things your team will learn by trial and error :-(

On Mon, Nov 4, 2019 at 9:15 AM Skip Morrow <[log in to unmask]> wrote:

> I would check a few things:
> Are you one hundred percent sure you are running the right program? I
> can't tell you how many times I have had to make a kid show me the program
> on the laptop and the program they are running on the EV3 and it turned out
> they were running the wrong program. Give the program a unique name (other
> than "program"!) and verify.
> Check to make sure all of the cables are plugged into the EV3 securely.
> Reboot the EV3
> Are you using the gyro? There are certainly some issues with the gyro that
> are well documented.
> Are you sure the program blocks operating the motors are commanding the
> right ports?
>
> Hopefully one of these will help.
>
>
> On Sun, Nov 3, 2019 at 11:33 PM masahide okada <
> [log in to unmask]> wrote:
>
>> Hi!
>> Thanks for the advice! Is it possible for as single program in a project
>> (on the computer) to have a bug? We tried deleting the one program on the
>> computer that the robot was not following properly, and rewrote it in
>> exactly the same way. This seems to have solved the problem though we
>> haven’t tested it enough to know for sure. Unfortunately, even if it did
>> work, we don’t know what caused it, so we are unsure how to prevent it from
>> happening again. Any thoughts?
>> Thanks,
>> Rosanna
>>
>> Sent from my iPhone
>>
>> On Nov 3, 2019, at 5:10 PM, srinivasalu s <[log in to unmask]> wrote:
>>
>> 
>> Try deleting all programs and download it once again.
>> On Sun, Nov 3, 2019, 4:00 PM masahide okada <
>> [log in to unmask]> wrote:
>>
>>> Hi all,
>>>
>>> Our tournament is November 10 and our EV3 brick has just started going
>>> crazy on us. It followed programs beautifully yesterday afternoon, we
>>> turned it off, plugged it in to charge it, and then turned it on again an
>>> hour or two later to show someone the new programs. This is when the robot
>>> started acting strangely, for example, going backwards when the program
>>> (that it followed before) says to go forward.
>>>
>>> The team has tried charging the battery overnight, checking for software
>>> updates (none), updated the firmware, unplugging and replugging in all the
>>> cables, restarting the app on the computer (a Dell). We even tried a new
>>> brick. Same problem.
>>>
>>> Can anyone offer any guidance? I’m desperate as our tournament is in 6
>>> days.
>>>
>>> Thanks,
>>> Rosanna Okada
>>> Lego my Eggo
>>> Sent from my iPhone
>>>
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